APA (7th ed.) Citation

Chao, B. F., & Rubincam, D. P. (1987). On seasonal variations of Mars' gravitational field. National Aeronautics and Space Administration, Scientific and Technical Information Branch.

Chicago Style (17th ed.) Citation

Chao, B. Fong, and David Parry Rubincam. On Seasonal Variations of Mars' Gravitational Field. [Washington, DC]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1987.

MLA (9th ed.) Citation

Chao, B. Fong, and David Parry Rubincam. On Seasonal Variations of Mars' Gravitational Field. National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1987.